Sökning: "Buried heterostructure laser"
Visar resultat 1 - 5 av 8 avhandlingar innehållade orden Buried heterostructure laser.
1. Gallium arsenide based buried heterostructure laser diodes with aluminium-free semi-insulating materials regrowth
Sammanfattning : Semiconductor lasers based on gallium arsenide and relatedmaterials are widely used in applications such as opticalcommunication systems, sensing, compact disc players, distancemeasurement, etc. The performance of these lasers can beimproved using a buried heterostructure offering lateralcarrier and optical confinement. LÄS MER
2. Metall organic vapour phase epitaxy for advanced III-V devices
Sammanfattning : Metalorganic vapour phase epitaxy (MOVPE) has proven to be a successful method for growth of structures for advanced optoelectronic semiconductor devices in III-V compounds. This thesis deals with technological and process related aspects of MOVPE from an experimental perspective. LÄS MER
3. Epitaxy, analysis and application of semi-insulating III-V materials
Sammanfattning : Semi-insulating (SI) III-V materials can provide electricalisolation for integration and capacitance minimisation for highspeed operation. Compared to the polyimides, these can offerbetter thermal conduction. Ever since the fabrication of thefirst SI III-V materials, transition metals have been utilisedas deep impurities to impart SI properties. LÄS MER
4. Scanning capacitance microscopy for semiconductor characterisation
Sammanfattning : .... LÄS MER
5. High performance materials and processing technology for uncooled 1.3 μm laser diodes
Sammanfattning : This thesis investigates different material systems and processing technology for high temperature compatible laser diodes used in volume applications within the 1.3-μm telecom wavelength window. LÄS MER